用适当的连词填空 1. －i called at your house at 7：00 this morning, but nobody answered the door. －oh, sorry. that was probably________i was out to do some shopping in the market. 答案：when 解析：考查名词性从句。空格处引导表语从句，表语从句中缺状语成分，根据句意可知，引导词在从句中作时间状语，故用when。 2. what i like about beijing university is________there's a famous lake and an excellent learning atmosphere. 答案：that 解析：考查表语从句。句意：关于
